PMA Digital 280-1 - Terminal Connection

* Interface description Modbus RTU in seperate manual: see page .
Electrical connections
8 Terminal connection Digital 280-1
12
13
14
15
17
(16)
11
12
13
14
15
10
12
13
14
15
17
(16)
11
12
13
14
15
10
12
13
14
15
17
(16)
11
12
13
14
15
RGND RGND
RGND
RT
interface
converter
RS485-RS232
PC
DATA A
DATA B
DATA A
DATA B
DATA A
DATA B
J
max. 1000m
twisted pair
10
RT
RGND optional connection
R = line resistanceT
12
13
14
15
17
16
10
11
12
13
14
15
10
11
12
13
14
15
10
11
12
13
14
15
12
13
14
15
17
16
12
13
14
15
17
16
9 RS485 interface (with RS232-RS485 interface converter) *
3
4
7
5
8
6
9
10
+
_
SSR
+
_
SSR
+
_
SSR
serial installation
7
8
9
Logic
4V
4V
4V
12V
I=22mA
max
7
8
9
7
8
9
parallel installation
+
_
SSR
+
_
SSR
I=22mA
max
12V
7
5
8
6
9
10
4
3
7
8
9
6 OUT 3 als Logikausgang mit Solid-State-Relais (Reihen- und Parallel-Schaltung)